2020年11月1日 Robust control of the variable speed wind turbines in the presence of uncertainties: a comparison between H∞ and PID controllers
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In summary, the control strategy for the variable speed stage is obtained in the following way, i.e., when the wind speed is lower than the rated wind
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2008年1月1日 Abstract. Variable speed wind turbines maximize the energy capture by operating the turbine at the peak of the power coefficient, however parametric
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2000年4月24日 Variable speed operation of wind turbine is necessary to increase power generation efficiency. A nonlinear wind turbine control method is explored in this paper.
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2021年4月1日 Variable speed wind turbine power control: A comparison between multiple MPPT based methods. Published: 01 April 2021. Volume 10 , pages 654–667, ( 2022 )
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2024年4月5日 International Journal of Adaptive Control and Signal Processing is a signal processing journal publishing model-based control design approaches. Summary An
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2017年11月14日 Control of Variable Speed Wind Turbines with Doubly Fed Asynchronous Generators for Stand-Alone Applications. by. Santiago Arnaltes. , Jose Luis Rodriguez
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2010年11月8日 The purpose of this paper is to investigate the design of the control system (as opposed to the synthesis of the controller) for variable speed wind turbines. The
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This paper presents the application of H-infinity controller for speed control of variable speed wind turbine system. For constant Wind speed and blade pitch an.
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2006年7月1日 This article considers an adaptive control scheme previously developed for region 2 control of a variable speed wind turbine. In this paper, the question of theoretical stability of the torque ...
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Pitch system is a complicated nonlinear system disturbed by many uncertainties and is a key part of wind turbine system. When wind speed exceeds rated cut-in speed, pitch angle is changed to control wind power conversion efficiency, thus capturing rated power from wind and protecting wind turbine from damage. In this paper, based on the analysis of wind
More2008年1月1日 Abstract. Variable speed wind turbines maximize the energy capture by operating the turbine at the peak of the power coefficient, however parametric uncertainties and disturbances may limit the efficiency of a variable speed turbine. In this study, we present a robust backstepping approach for the variable speed control of wind turbines.
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This study proposes a novel control strategy for the provision of an active power reserve for variable-speed wind turbines. The proposed control strategy aims at maximising the rotational kinetic energy by jointly optimising the rotational speed and the pitch angle using differential evolution. The optimisation process takes into account the given frequency
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A turbine and wind field are modelled for the Kalman filter to operate. The Kalman filter yields a good estimate of rotational speed from noisy measurement. In laboratory tests, both 100 kW and 300 W generators and frequency converters were subjected to variable wind torque. Both control algorithms, feedforward and fuzzy, operated satisfactorily.
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2016年9月13日 The active power control (APC) of variable-speed wind turbines (VSWT) is increasingly required to support the power system operation and control. Besides control strategies, the power reference also exerts a significant influence upon APC performance. Due to the VSWT instability, the optimistic reference which is usually determined
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2010年11月8日 The two frequently mentioned ones are: additional energy capture below rated wind speed and additional power-train compliance and associated load alleviation above rated wind speed. The purpose of this paper is to investigate the design of the control system (as opposed to the synthesis of the controller) for variable speed wind turbines.
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2021年3月15日 You can control a turbine by controlling the generator speed, blade angle adjustment, and rotation of the entire wind turbine. Blade angle adjustment and turbine rotation are also known as pitch and yaw control, respectively. A visual representation of pitch and yaw adjustment is shown in Figures 5 and 6.
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The characteristics of wind turbine systems such as nonlinearity, uncertainty and strong coupling, as well as external interference, present great challenges in wind turbine controller design. In this paper, a quasi-continuous high-order sliding mode method is used to design controllers due to its strong robustness to external disturbances, unmodeled dynamics
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2013年9月6日 controllers. This report explores an adaptive control technique designed to reduce the negative effects of this uncertainty. The primary focus of this work is a new adaptive controller that is designed to resemble the standard non-adaptive controller used by the wind industry for variable speed wind turbines below rated power.
More2022年6月1日 The time step is usually determined by making the rotor move at a specific angle (i.e. 0.5°, 1°) for a turbine with a constant speed. For the present proposed variable-speed turbine control cases, the rotational speed of each turbine is variable, so the time step independence is verified for the configuration shown in Fig. 5.
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2002年11月15日 Torque- and Speed Control of a Pitch Regulated Wind Turbine. Mika Rasila. Engineering, Environmental Science. 2003. Variable speed operated wind turbines has the potential to reduce fatigue loads, compared to fixed speed wind turbines. With pitch controllable rotor blades limitation of the power at high wind. Expand.
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Wind farms are considered to be negative loads from the point of view of a utility manager. Modern variable-speed wind turbines offer the possibility for controlling active and reactive power separately. This paper presents a new integrated control system of a wind farm according to the utility manager's requirements. This control system is based on two
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2010年11月8日 A general study on wind turbine control suggests that a variable-speed turbine, requiring torque and speed control, can absorb 2.3% more energy than a fixed-speed counterpart, where the speed is ...
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2006年8月14日 To maximize wind power extraction, a variable-speed wind turbine (VSWT) should operate as close as possible to its optimal power coefficient. The generator torque is used as a control input to improve wind energy capture by forcing the wind turbine (WT) to stay close to the maximum energy point. In general, current control techniques do not
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2017年3月22日 3.1. Control objectives For a variable speed WT, two operation zones are distinguish-able: below and above the rated wind speed. Control objectives within these two operation zones are different: C The control objective is to maximize wind power capture at below rated wind speed; C The control objective is to control the output power as the
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2000年1月1日 Wind turbines exploit this energy source to directly generate electrical power. There are essentially two types of windturbines, namely constant speed and variable speed machines. The purpose of this paper is to investigate the dynamics of variable speed wind turbines and determine suitable models to support the control design task.
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2010年11月8日 Wind turbines exploit this energy source to directly generate electrical power. There are essentially two types of windturbines, namely constant speed and variable speed machines. The purpose of this paper is to investigate the dynamics of variable speed wind turbines and determine suitable models to support the control design task.
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2019年4月23日 Wind turbine generators (WTG) can participate in system frequency regulation via virtual inertial controllers (VIC). In the presence of frequency disturbances, VIC temporarily regulates the WTG power output forcing it to release/absorb kinetic energy into/from the grid. With increasing penetration of WTGs in power systems, grid operators
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